Active control of machine tool chatter for a boring BAR: Experimental results

Sanjiv G. Tewani; Thad C. Switzer; Bruce L. Walcott; Keith E. Rouch; Ted R. Massa

doi:10.1115/DETC1993-0226

Active control of machine tool chatter for a boring BAR: Experimental results

Sanjiv G. Tewani
, Thad C. Switzer
, Bruce L. Walcott
, Keith E. Rouch
, Ted R. Massa

Electrical and Computer Engineering

Producción científica: Conference contribution › revisión exhaustiva

1 Cita (Scopus)

Resumen

A typical boring bar is a metal cutting tool with large overhang ratio, due to which it is characterized by low dynamic stiffness. Therefore, during cutting process, it is susceptible to cutting instability, known as machine tool chatter. In this ptaper, the use of an active dynamic absorber to actively control machine tool chatter in a boring bar is studied. An active dynamic absorber is designed such that it can be easily assembled with a commercially available steel boring bar. A piezoelectric pusher is used as the actuator for the active dynamic absorber. The dynamic equations of the boring bar with active dynamic absorber are calculated from experimentally obtained frequency response functions of the system. Optimal control theory is applied to the dynamic equations to calculate state variable feedback parameters. The state variable feedback is implemented using a Digital Signal Processing (DSP) chip. Cutting tests were performed with this setup for different cutting conditions, and for different overhangs of the boring bar. Stable cutting operations were performed using the boring bar with active dynamic absorber, for length to diameter (L/D) ratio upto 9.

Idioma original	English
Título de la publicación alojada	14th Biennial Conference on Mechanical Vibration and Noise
Subtítulo de la publicación alojada	Vibration and Control of Mechanical Systems
Páginas	103-115
Número de páginas	13
ISBN (versión digital)	9780791811771
DOI	https://doi.org/10.1115/DETC1993-0226
Estado	Published - 1993
Evento	ASME 1993 Design Technical Conferences, DETC 1993 - Albuquerque, United States Duración: sept 19 1993 → sept 22 1993

Serie de la publicación

Nombre	Proceedings of the ASME Design Engineering Technical Conference
Volumen	Part F167972-9

Conference

Conference	ASME 1993 Design Technical Conferences, DETC 1993
País/Territorio	United States
Ciudad	Albuquerque
Período	9/19/93 → 9/22/93

Nota bibliográfica

Publisher Copyright:
© 1993 American Society of Mechanical Engineers (ASME). All rights reserved.

Financiación

Acknowledgement This research has been performed with the support of Kennametal Inc. at Latrobe, Pennsylvania, and Center for Robotics and Manufacturing Systems at University of Kentucky. We are thankftil for all the help and support given by Mr. David Siddle, and Mr. John VanKirk of Keimametal, Inc..

Financiadores
Kennametal, Inc.

ASJC Scopus subject areas

Mechanical Engineering
Computer Graphics and Computer-Aided Design
Computer Science Applications
Modeling and Simulation

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10.1115/DETC1993-0226

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Tewani, S. G., Switzer, T. C., Walcott, B. L., Rouch, K. E., & Massa, T. R. (1993). Active control of machine tool chatter for a boring BAR: Experimental results. En 14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems (pp. 103-115). (Proceedings of the ASME Design Engineering Technical Conference; Vol. Part F167972-9). https://doi.org/10.1115/DETC1993-0226

@inproceedings{c881a0707d4846aab9b59f348a62247f,

title = "Active control of machine tool chatter for a boring BAR: Experimental results",

abstract = "A typical boring bar is a metal cutting tool with large overhang ratio, due to which it is characterized by low dynamic stiffness. Therefore, during cutting process, it is susceptible to cutting instability, known as machine tool chatter. In this ptaper, the use of an active dynamic absorber to actively control machine tool chatter in a boring bar is studied. An active dynamic absorber is designed such that it can be easily assembled with a commercially available steel boring bar. A piezoelectric pusher is used as the actuator for the active dynamic absorber. The dynamic equations of the boring bar with active dynamic absorber are calculated from experimentally obtained frequency response functions of the system. Optimal control theory is applied to the dynamic equations to calculate state variable feedback parameters. The state variable feedback is implemented using a Digital Signal Processing (DSP) chip. Cutting tests were performed with this setup for different cutting conditions, and for different overhangs of the boring bar. Stable cutting operations were performed using the boring bar with active dynamic absorber, for length to diameter (L/D) ratio upto 9.",

author = "Tewani, \{Sanjiv G.\} and Switzer, \{Thad C.\} and Walcott, \{Bruce L.\} and Rouch, \{Keith E.\} and Massa, \{Ted R.\}",

note = "Publisher Copyright: {\textcopyright} 1993 American Society of Mechanical Engineers (ASME). All rights reserved.; ASME 1993 Design Technical Conferences, DETC 1993 ; Conference date: 19-09-1993 Through 22-09-1993",

year = "1993",

doi = "10.1115/DETC1993-0226",

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series = "Proceedings of the ASME Design Engineering Technical Conference",

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Tewani, SG, Switzer, TC, Walcott, BL, Rouch, KE & Massa, TR 1993, Active control of machine tool chatter for a boring BAR: Experimental results. En 14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems. Proceedings of the ASME Design Engineering Technical Conference, vol. Part F167972-9, pp. 103-115, ASME 1993 Design Technical Conferences, DETC 1993, Albuquerque, United States, 9/19/93. https://doi.org/10.1115/DETC1993-0226

Active control of machine tool chatter for a boring BAR: Experimental results. / Tewani, Sanjiv G.; Switzer, Thad C.; Walcott, Bruce L. et al.
14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems. 1993. p. 103-115 (Proceedings of the ASME Design Engineering Technical Conference; Vol. Part F167972-9).

Producción científica: Conference contribution › revisión exhaustiva

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Active control of machine tool chatter for a boring BAR: Experimental results

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Serie de la publicación

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Nota bibliográfica

Financiación

ASJC Scopus subject areas

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